I found it really interesting to discuss how differently the history of semiconductor technology could have turned out if a butterfly had flapped its wings in the '60s. Chris Auth, who leads Intel's process development, implied that all the counterfactual tech trees would have converged to around the same design by 2045: 3D structures of layers upon layers of transistors, with layers of connecting wires between each one. And that this is basically where we're headed over the next 10 to 20…